Evacuation day.
--In New York, the people periodically celebrate the day on which the British finally took their leave of that place. The occasion is fondly called ‘"evacuation day." ’ Yesterday a large number of citizens and strangers who had been attracted to Mechanics' Hall to witness the deliberations of the State Convention, celebrated a similar event. About 2 o'clock, in consequence of the boisterous applause manifested by a portion of the auditory at the remarks of some one of the popular members of the august body named, a motion prevailed that the Hall be cleared, which operation was performed by the officials in a praiseworthy manner, though to the utter disgust of a large number of quiet spectators who had taken no part in the manifestations which called down the indignation of members. The feelings of such were not loud but deep.We cannot refrain from adding a word or two in reference to the habit of applauding speakers in the Convention. The citizens who daily congregate there know full well that a demonstration of this kind is a violation of good order as well as good manners; for the President has cautioned them again and again, and we are positive that the order he gave yesterday was more painful to him than to any one else. We hope and believe that henceforth there will be nothing of the sort to complain of, and that the people and the Convention will dwell together in peace and harmony.